HMS J5
The J class was designed by the Royal Navy in response to reported German submarines with surface speeds over 18 knots (33 km/h; 21 mph).[1] Armament consisted of six 18 inch (450 mm) torpedo tubes (four forward, one on each beam), plus a 4-inch deck gun.[1] Originally, the gun was mounted on a breastwork fitted forward of the conning tower, but the breastwork was later extended to the bow and merged into the hull for streamlining, and the gun was relocated to a platform fitted to the front of the conning tower.After the war, the British Admiralty decided that the best way to protect the Pacific region was with a force of submarines and cruisers.She was sold on 26 February 1924 and after stripping, she, J1, and J2 were scuttled in the ship graveyard off Port Phillip Heads on 4 June 1926.